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A trapdoor is a sliding or hinged door that is flush with the surface of a floor, ceiling, or roof. [1] It is traditionally small in size. [2] It was invented to facilitate the hoisting of grain up through mills, however, its list of uses has grown over time. [3] The trapdoor has played a pivotal function in the operation of the gallows, cargo ...
The Trap Door is a British animated television series, originally shown in the United Kingdom in 1986. [1] [2] [3] The plot revolves around the daily lives and the misadventures of a group of monsters living in a castle. These include a blue creature called Berk, a spider-like creature called Drutt, and Boni, who was a skull of unknown origin.
Schrödinger's cat. Schrödinger's cat: a cat, a flask of poison, and a radioactive source connected to a Geiger counter are placed in a sealed box. As illustrated, the quantum description uses a superposition of an alive cat and one that has died. In quantum mechanics, Schrödinger's cat is a thought experiment concerning quantum superposition.
Execution of Mary Surratt, Lewis Powell, David Herold, and George Atzerodt on July 7, 1865, after trapdoor has been sprung, at Fort McNair, in Washington. A gallows (or less precisely scaffold) is a frame or elevated beam, typically wooden, from which objects can be suspended or "weighed". Gallows were thus widely used to suspend public ...
Markus Alexej Persson ( / ˈmɑːrkəs ˈpɪərsən / ⓘ, Swedish: [ˈmǎrkɵs ˈpæ̌ːʂɔn] ⓘ; born 1 June 1979), also known as " Notch ", [3] is a Swedish video game programmer and designer. He is the creator of the video game Minecraft, which since its release has become the best-selling video game in history. He founded the video game ...
The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3,000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to their creation of trapdoors over their burrows. Other prominent groups include Australian funnel web ...
Trapdoor Inc. was a Canadian video game developer based in Montreal. Founded in August 2008 by Ken Schachter, the company developed Warp and co-published Polytron Corporation 's Fez, both released in 2012. A third title, Heist, was cancelled after six months in development before Trapdoor was shut down in December 2012.
Claw-free permutation. In the mathematical and computer science field of cryptography, a group of three numbers ( x, y, z) is said to be a claw of two permutations f0 and f1 if. f0 ( x) = f1 ( y) = z. A pair of permutations f0 and f1 are said to be claw-free if there is no efficient algorithm for computing a claw.